No Mercy
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_hospital02_subway |  Nxthing | Expert | 6.67 minutes |
| (Co-op) l4d_hospital02_subway | Nxthing | Normal | 8.60 minutes |
| (Co-op) l4d_hospital03_sewers | Nxthing | Expert | 3.45 minutes |
| (Co-op) l4d_hospital03_sewers | Nxthing | Advanced | 6.44 minutes |
| (Co-op) l4d_hospital03_sewers | Nxthing | Normal | 11.01 minutes |
| (Co-op) l4d_hospital04_interior | Nxthing | Expert | 6.70 minutes |
| (Co-op) l4d_hospital04_interior | Nxthing | Advanced | 6.14 minutes |
| (Co-op) l4d_hospital04_interior | Nxthing | Normal | 7.09 minutes |
| (Co-op) l4d_hospital05_rooftop | Nxthing | Expert | 8.73 minutes |
| (Co-op) l4d_hospital05_rooftop | Nxthing | Advanced | 6.10 minutes |
| (Co-op) l4d_hospital05_rooftop | Nxthing | Normal | 10.19 minutes |
Dead Air
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_airport01_greenhouse | Nxthing | Advanced | 3.93 minutes |
| (Co-op) l4d_airport01_greenhouse | Nxthing | Normal | 2.87 minutes |
| (Co-op) l4d_airport02_offices | Nxthing | Advanced | 6.66 minutes |
| (Co-op) l4d_airport02_offices | Nxthing | Normal | 5.30 minutes |
| (Co-op) l4d_airport03_garage | Nxthing | Advanced | 5.36 minutes |
| (Co-op) l4d_airport03_garage | Nxthing | Normal | 7.69 minutes |
| (Co-op) l4d_airport04_terminal | Nxthing | Advanced | 4.26 minutes |
| (Co-op) l4d_airport04_terminal | Nxthing | Normal | 3.44 minutes |
| (Co-op) l4d_airport05_runway | Nxthing | Advanced | 10.00 minutes |
| (Co-op) l4d_airport05_runway | Nxthing | Normal | 6.13 minutes |
Death Toll
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_smalltown01_caves | Nxthing | Advanced | 3.00 minutes |
| (Co-op) l4d_smalltown02_drainage | Nxthing | Advanced | 5.07 minutes |
| (Co-op) l4d_smalltown03_ranchhouse | Nxthing | Advanced | 5.50 minutes |
| (Co-op) l4d_smalltown04_mainstreet | Nxthing | Advanced | 6.99 minutes |
| (Co-op) l4d_smalltown05_houseboat | Nxthing | Advanced | 10.53 minutes |
Blood Harvest
| Map | Name | Difficulty | Time |
|---|---|---|---|
| (Co-op) l4d_farm01_hilltop | Nxthing | Normal | 5.06 minutes |
| (Co-op) l4d_farm02_traintunnel | Nxthing | Advanced | 5.64 minutes |
| (Co-op) l4d_farm02_traintunnel | Nxthing | Normal | 4.92 minutes |
| (Co-op) l4d_farm03_bridge | Nxthing | Advanced | 4.84 minutes |
| (Co-op) l4d_farm03_bridge | Nxthing | Normal | 4.43 minutes |
| (Co-op) l4d_farm04_barn | Nxthing | Normal | 3.84 minutes |
| (Co-op) l4d_farm05_cornfield | Nxthing | Normal | 9.13 minutes |
